What this code means

Engine speed sensor abnormality; the same code family also covers a cam angle sensor open abnormality. Effect per source: the engine stops.

Applies to: 7-series IC forklift (engine ECU).

Possible causes / checks (from the source)

Inspect the engine speed sensor for damage or loose connection; check sensor wiring; verify battery voltage; inspect the ignition system for faulty components.

Need the part?

If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (18-1), machine model and serial number — we quote genuine and OEM replacement parts for export.